Matthias,
The reason getContent does not return anything is because it writes directly
to the output stream (see service.handleRequest call). I have a modified
version of JspPortlet which can either display portlet located by name or by
its physical location. The 2nd case illustrates returning the jsp content
rather than writing directly to output stream - this is how it used to be
done in prior release of Jetspeed.
Here's the code:
============================================================================
==============================================================
public ConcreteElement getContent(RunData rundata )
{
try {
// Build parameter list to be passed with the jsp
Iterator names =
this.getPortletConfig().getInitParameterNames();
StringBuffer parms = new StringBuffer();
if (names.hasNext()) {
parms.append("?");
}
while (names.hasNext()) {
String name = (String)names.next();
String value =
(String)getPortletConfig().getInitParameter(name);
parms.append(name).append("=").append(value);
if (names.hasNext()) {
parms.append("&");
}
}
// Add jsp tools
HttpServletRequest req = rundata.getRequest();
req.setAttribute(JspService.LINK, new JspLink(rundata));
req.setAttribute(JspService.RUNDATA, rundata);
req.setAttribute("portlet", this.getName());
// Retrieve the URL
PortletEntry pe =
(PortletEntry)Registry.getEntry(Registry.PORTLET, this.getName());
String jsp = pe.getURL();
// Files referenced from default templates folder will be
processed
// using JspService. Otherwise, they will be loaded using
EcsServletElement
// from where ever they came from (for example,
"/WEB-INF/templates/jsp/screens/html/some.jsp").
if (jsp.startsWith("/template/")) {
JspService jserv =
(JspService)TurbineServices.getInstance().getService(JspService.SERVICE_NAME
);
TemplateLocatorService lserv =
(TemplateLocatorService)TurbineServices.
getInstance().getService(TemplateLocatorService.SERVICE_NAME);
String template = jsp.substring(10);
//we use the template locator service to translate the
template
String locatedTemplate =
lserv.locatePortletTemplate(rundata, template);
Log.debug("JspServerPortlet: located portlet template = " +
locatedTemplate);
if (locatedTemplate == null) {
locatedTemplate = lserv.locateScreenTemplate(rundata,
template);
if (locatedTemplate != null) {
locatedTemplate = "/screens" + locatedTemplate;
}
Log.debug("JspServerPortlet: located screen template = "
+ locatedTemplate);
}
// this is only necessary if we ddon't run in a JSP page
environment
// but better be safe than sorry...
jserv.addDefaultObjects(rundata);
// handle request
jserv.handleRequest(rundata, locatedTemplate);
return new ElementContainer();
} else {
return new EcsServletElement(rundata, jsp +
parms.toString());
}
} catch (Exception e) {
Log.error(e);
return new
StringElement(myPortalResources.MSG_TEMPORARILY_UNAVAILBLE);
}
}
============================================================================
=============================================================
Hope this helps. Incidentally, writing a JSP base controller is on my long
list of todo's. Would be willing to share that code? I'm sure other JSP
developers on this list would benefit as well. Thanks!
Best regards,
Mark C. Orciuch
IT Consultant
Voice: 219-647-4122
e-Mail: [EMAIL PROTECTED]
-----Original Message-----
From: Wimmer, Matthias [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 10, 2002 8:33 PM
To: 'Jetspeed Users List'
Subject: JSP and Jetspeed
Hi,
my goal is the improvement of Jetspeed with respect to the JSP templates.
Unfortunately I am a beginner in all this stuff:
- calls to JSP templates
- their integration to the process of aggregation
- ...
My first step was to write a control using JSP. I succeeded but there are
still a few problems.
There is also a problem with the pre-implemented JSPPortlet's method with
the name getContent(). It results with an empty string, but the content of
the page appears anyway.
How is this done by the JSPPortlet? This is not the usual behavior, is it?
How can this be fixed?
best regards
Matthias Wimmer
--
To unsubscribe, e-mail:
<mailto:[EMAIL PROTECTED]>
For additional commands, e-mail:
<mailto:[EMAIL PROTECTED]>
--
To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
